The Waveform U.FL to SMA-Female Pigtail adapter uses a high-quality 1.13mm flexible cable that is both durable and strong, while providing minimal insertion loss. This Waveform U.FL to SMA-Female Pigtail adapter replaces our earlier SMA-Female to U.FL Pigtail Adapter. It's thinner 1.13 cable and improved U.FL connector allows for easier overall installation experience.